NDU31 is operated by UNIVERSITY OF NORTH DAKOTA, C/O JOHN D ODEGARD SCHOOL OF AEROSPA between Crookston Municipal Kirkwood Field (KCKN) and Grand Forks International Airport (KGFK). The flight is most often flown by a PIPER Piper Cherokee. Typical block time is 0h 31m. SkyMeter has observed 417 legs of this flight number via ADS-B.

✈
FLIGHTS
417
last 90 days
⏱
AVG DURATION
31m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 8/14/2026
first → last seen
🗺
ROUTES / TYPES
73 / 1
city pairs · airframes
⚠
INCIDENT RATE
7.2%
30 flagged

Routes flown

By count · last 90 days

10
KCKN → KGFK
35
avg 19m · Crookston Municipal Kirkwood Field → Grand Forks
KGFK → KCKN
17
avg 32m · Grand Forks → Crookston Municipal Kirkwood Field
8ND4 → KGFK
15
avg 7m · Heyde → Grand Forks
2MN0 → KGFK
11
avg 13m · Pribbs Field → Grand Forks
MN81 → KGFK
10
avg 6m · J J and T → Grand Forks
KGFK → K4V4
9
avg 31m · Grand Forks → Northwood Municipal Vince Field
KGFK → D06
9
avg 12m · Grand Forks → Minto
KRDR → KGFK
8
avg 9m · Grand Forks Air Force Base → Grand Forks
KGFK → KD37
7
avg 21m · Grand Forks → Warren
MN38 → KGFK
7
avg 9m · Spud Field → Grand Forks

Aircraft types

Equipment used on this number

1
P28A PIPER Piper Cherokee
419

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
30
Rejected TO
0
Stall warnings
0
Overspeeds
0
Runway excursion
0
Counts represent flights with at least one occurrence of each flag, not the total event count. See /incidents for individual events.

Recent flights

Newest 30 operations of NDU31

30
N631NDPIPER Piper Cherokee
→
8/14/2026
7m
No alerts
Replay Analysis
N631NDPIPER Piper Cherokee
→
8/14/2026
1h 0m
No alerts
Replay Analysis
N631NDPIPER Piper Cherokee
→
8/14/2026
1h 32m
No alerts
Replay Analysis
N631NDPIPER Piper Cherokee
→
8/14/2026
23m
No alerts
Replay Analysis
N631NDPIPER Piper Cherokee
→
8/14/2026
1h 25m
No alerts
Replay Analysis
N631NDPIPER Piper Cherokee
→
8/14/2026
33m
No alerts
Replay Analysis
N631NDPIPER Piper Cherokee
→
8/13/2026
10m
No alerts
Replay Analysis
N631NDPIPER Piper Cherokee
→
8/13/2026
4m
No alerts
Replay Analysis
N631NDPIPER Piper Cherokee
→
8/13/2026
42m
No alerts
Replay Analysis
N631NDPIPER Piper Cherokee
→
8/13/2026
12m
No alerts
Replay Analysis
N631NDPIPER Piper Cherokee
→
8/13/2026
20m
No alerts
Replay Analysis
N631NDPIPER Piper Cherokee
→
8/13/2026
14m
No alerts
Replay Analysis
N631NDPIPER Piper Cherokee
→
8/13/2026
52m
No alerts
Replay Analysis
N631NDPIPER Piper Cherokee
→
8/13/2026
4m
No alerts
Replay Analysis
N631NDPIPER Piper Cherokee
→
8/13/2026
53m
No alerts
Replay Analysis
N631NDPIPER Piper Cherokee
→
8/11/2026
26m
No alerts
Replay Analysis
N631NDPIPER Piper Cherokee
→
8/11/2026
10m
No alerts
Replay Analysis
N631NDPIPER Piper Cherokee
→
8/11/2026
55m
No alerts
Replay Analysis
N631NDPIPER Piper Cherokee
→
8/11/2026
10m
△ Low approach-stability score
Replay Analysis
N631NDPIPER Piper Cherokee
→
8/11/2026
27m
No alerts
Replay Analysis
N631NDPIPER Piper Cherokee
→
8/11/2026
10m
No alerts
Replay Analysis
N631NDPIPER Piper Cherokee
→
8/11/2026
50m
No alerts
Replay Analysis
N631NDPIPER Piper Cherokee
→
8/11/2026
56m
No alerts
Replay Analysis
N631NDPIPER Piper Cherokee
→
8/11/2026
1h 10m
No alerts
Replay Analysis
N631NDPIPER Piper Cherokee
→
8/10/2026
3m
No alerts
Replay Analysis
N631NDPIPER Piper Cherokee
→
8/10/2026
25m
No alerts
Replay Analysis
N631NDPIPER Piper Cherokee
→
8/10/2026
29m
No alerts
Replay Analysis
N631NDPIPER Piper Cherokee
→
8/10/2026
1h 25m
No alerts
Replay Analysis
N631NDPIPER Piper Cherokee
→
8/8/2026
8m
No alerts
Replay Analysis
N631NDPIPER Piper Cherokee
→
8/8/2026
15m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window